Simulate slow query in mongodb?

Question

Does MongoDb have anything like MySql\'s SELECT SLEEP(5); ?

I can see some internal sleep function that would pause the whole server, but I need to pause ju

Answer 1

You can use the $where operator to call sleep(). This should work in any language or ORM/ODM. For example, in Mongoid you could do:

Model.where( :$where => "sleep(100) || true" ).count

Tune the sleep value for the number of documents in the collection (it will delay on each one). This will do fairly horrible things to the DB server, so only use it for testing, and never (ever!) on a production server.